Fix shadow field warning.
Fix shadow field warning.

tecnovert/particl-core,particl/particl-core,tecnovert/particl-core,particl/particl-core,particl/particl-core,particl/particl-core,tecnovert/particl-core,particl/particl-core,tecnovert/particl-core,particl/particl-core,tecnovert/particl-core,tecnovert/particl-core